// DelMarkerExpiration used to xml encode/decode ILM action by the same name
type DelMarkerExpiration struct {
	XMLName xml.Name `xml:"DelMarkerExpiration"`
	Days    int      `xml:"Days,omitempty"`
}

// Empty returns if a DelMarkerExpiration XML element is empty.
// Used to detect if lifecycle.Rule contained a DelMarkerExpiration element.

                            <Rule>
                              <ID>DelMarkerExpiration</ID>
                              <Filter></Filter>
                              <Status>Enabled</Status>
                              <DelMarkerExpiration>
                                <Days>60</Days>
                              </DelMarkerExpiration>
                             </Rule>

	                    </Rule>`,
			expectedErr: errXMLNotWellFormed,
		},
		{
			inputXML: `<Rule>
				<ID>Rule with a tag and DelMarkerExpiration</ID>
				<Filter><Tag><Key>k1</Key><Value>v1</Value></Tag></Filter>
				<DelMarkerExpiration>
					<Days>365</Days>
				</DelMarkerExpiration>
                            <Status>Enabled</Status>
	                    </Rule>`,
			expectedErr: errInvalidRuleDelMarkerExpiration,

	}

	// DelMarkerExpiration
	lc = Lifecycle{
		Rules: []Rule{
			{
				ID:     "delmarker-exp-20",
				Status: "Enabled",
				DelMarkerExpiration: DelMarkerExpiration{
					Days: 20,
				},
			},
			{
				ID:     "delmarker-exp-10",
				Status: "Enabled",
				DelMarkerExpiration: DelMarkerExpiration{
					Days: 10,
				},
			},
		},

	Expiration          Expiration          `xml:"Expiration,omitempty"`
	Transition          Transition          `xml:"Transition,omitempty"`
	DelMarkerExpiration DelMarkerExpiration `xml:"DelMarkerExpiration,omitempty"`
	// FIXME: add a type to catch unsupported AbortIncompleteMultipartUpload AbortIncompleteMultipartUpload `xml:"AbortIncompleteMultipartUpload,omitempty"`